I Want to Build a Go Fast RC !

[PBO]

Originally Posted by Bondonutz

Sweet Nitro, your on your way to getting started !
More info about your set up, what motor w/the 4s,gearing etc.

Q For you speed demons, Which would I better off with ?

The stock center spool or a open diff and explain why please.

I'm going with the stock spool (never seen or held one though) because I run 100k in my 8T diff which netts a similar effect. I run fairly light fluids fore & aft because I still need to turn around...I would expect this strategy to work with a fixed spool also

As a footnote though, I've found I eat bearings at frighteningly short intervals using 100k, this will often present as the rear centre drive failing under load...sounds ugly, looks ugly & has potential for mucho damage!